Washington County, Colorado · Frost dates
Washington County frost dates.
First-frost, last-frost, and growing-season length for Washington County, Colorado. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 5a
32°F — light freeze
Last spring frost
- 10%
- 05-22
- 20%
- 05-16
- 50%
- 05-08
- 80%
- 05-01
- 90%
- 04-27
First fall frost
- 10%
- 09-25
- 20%
- 09-29
- 50%
- 10-06
- 80%
- 10-13
- 90%
- 10-17
28°F — killing freeze
Last spring freeze
- 10%
- 05-11
- 20%
- 05-07
- 50%
- 04-30
- 80%
- 04-19
- 90%
- 04-14
First fall freeze
- 10%
- 10-03
- 20%
- 10-06
- 50%
- 10-15
- 80%
- 10-22
- 90%
- 10-26
Growing season length (days, 28°F threshold)
- Short year
- 145
- Median
- 168
- Long year
- 195
Source NOAA station
AKRON 4 E, CO US
13.6 mi · 30 yrs of record (1991–2020) · 4542 ft elev.
Data from AKRON 4 E, CO US, 13.6 miles away with 30-year NOAA record (1991-2020).
Bield Farm earns its predictions.
14-day free trial. No credit card. Cancel anytime.